/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package daw.controlador;

import daw.bean.Delito;
import java.io.IOException;
import java.io.IOException;
import java.io.PrintWriter;
import javax.annotation.Resource;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceUnit;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.swing.JOptionPane;
import javax.transaction.UserTransaction;

/**
 *
 * @author Fercho
 */
public class ControladorDelito extends HttpServlet {

    @PersistenceUnit
    private EntityManagerFactory emf;
    @Resource
    private UserTransaction utx;


    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        
        String operacion = request.getParameter("operacion");
        if(operacion == null){
            throw new ServletException("No se ha definido valor de operación.");
        } else if(operacion.equals("prepararParaAgregar")){
            getServletContext().getRequestDispatcher("/servicio/protegido/addDelito.jsp").forward(request, response);
        } else if(operacion.equals("agregar")){
          PrintWriter out = response.getWriter();
                
            try {
                String nombre;
                Delito delito;
                nombre = request.getParameter("delito");
                if(nombre!=null){
                    EntityManager em;
                    delito = new Delito();
                    delito.setNombre(nombre);
                    em = emf.createEntityManager();
                    utx.begin();
                    em.persist(delito);
                    utx.commit();
                }else{
					request.setAttribute("mensaje", "Delito NO registrado. Ingrese nombre.");
                }
                getServletContext().getRequestDispatcher("/servicio/protegido/addDelito.jsp").forward(request, response);
             }
              catch(Exception e){
                e.printStackTrace(response.getWriter());
            } finally {
                out.close();
            }
        }
        
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
